90155160 has 64 divisors (see below), whose sum is σ = 300520800. Its totient is φ = 24041088.

The previous prime is 90155123. The next prime is 90155167. The reversal of 90155160 is 6155109.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90155167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40659 + ... + 42818.

Almost surely, 2^90155160 is an apocalyptic number.

90155160 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

90155160 is an abundant number, since it is smaller than the sum of its proper divisors (210365640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90155160 is a wasteful number, since it uses less digits than its factorization.

90155160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83497 (or 83487 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 90155160 is about 9495.0071090021. The cubic root of 90155160 is about 448.3978581954.

The spelling of 90155160 in words is "ninety million, one hundred fifty-five thousand, one hundred sixty".